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Prices may varyThis product ranks #1 of 20 in Jump Starter.
Last reviewed June 14, 2026
TL;DR Amazon spec table claims UL certification; not confirmed in the UL Product iQ database. 2000A 12V lithium jump starter, community-confirmed reliable for gas vehicles up to V8; the peak-amp label claim has not been independently bench-tested. Standard Li-ion; community reports 70-75% charge retained at one year; no documented thermal runaway incidents for this model.
The GB70 is a portable jump starter rated for gasoline engines up to 8.0L and diesel up to 6.0L. The Amazon product listing includes "Specification Met: UL" in the specs table, but the listing could not be confirmed via the UL Product iQ database at time of review; the certification is treated as provisional. NOCO's UltraSafe system includes patented spark-proof clamps and reverse-polarity protection, reducing the risk of incorrect connections. The 2000A peak rating has not been independently bench-tested; community evidence, including a JK-Forum field test on a discharged Jeep JK and a broad base of long-term owner reports spanning passenger cars, SUVs, and trucks, confirms reliable real-world starting for the claimed vehicle classes under normal conditions. Charge retention is a category standout: long-term owners report 70-75% charge retained after 12 months in storage without a top-off, consistent with NOCO's one-year claim. The IP65-rated housing with rubber over-molding handles trunk and glovebox storage across temperature extremes.
The GB70 fits owners who want a single jump starter that covers everything from a compact car to a full-size diesel pickup, stored in the truck bed or trunk for months between uses. The IP65 rating and charge retention make it low-maintenance emergency gear. Skip it if USB-C Power Delivery fast-charging is a priority, since the 10W USB-C port is standard charging only, or if budget is the primary constraint; the GB40 covers gas engines up to 6.0L at a lower price point.
The Amazon spec table claims UL certification; the listing has not been independently confirmed in the UL Product iQ database. Standard Li-ion battery chemistry: no documented thermal-runaway incidents for this model, and NOCO documents BMS and reverse-polarity protection. California Prop 65 warning present on the listing (standard for Li-ion products). Li-ion batteries are recyclable via Call2Recycle drop-off at Home Depot, Lowe's, Staples, and Best Buy.
The Amazon product listing includes 'Specification Met: UL' in the specifications table, and the unit carries UL branding. A direct UL Product iQ database lookup was not completed at time of scoring, so the certification is documented as provisional. If UL listing is later confirmed via productiq.ul.com, the safety certification quality score and health score may improve.
No. The GB70 has a USB-C port rated at 10W standard charging. It does not support USB-C Power Delivery. For Power Delivery fast-charging of laptops and newer phones, the GBX75 or other GB-series units with PD output would be needed.
Community long-term owner reviews report 70-75% charge retained after 12 months of storage with no intervening charge, consistent with NOCO's up-to-1-year spec. A top-off every 3 months is the common recommendation for trunk emergency use; every 6 months is adequate for garage-kept storage. Units stored fully discharged for 6+ months may trigger BMS lockout and fail to accept a charge, which is a storage maintenance issue, not a product defect.
NOCO rates the GB70 for up to 8.0L gasoline and up to 6.0L diesel engines at 12V. Community evidence confirms reliable starting for 4-cylinder, 6-cylinder, and V8 gasoline vehicles under normal conditions. Cold-weather diesel performance data is thinner: confirmed at normal temperatures, but sub-zero diesel starting data is limited in available community evidence.
The Amazon listing for NOCO Boost HD GB70 Jump Starter carries a California Prop 65 warning. California requires this warning on a very wide range of manufactured goods — including electronics with wiring, solder joints, or plastic/metal housings — whenever trace exposure to any of roughly 900 listed substances (commonly phthalates or heavy metals) is possible, regardless of whether the specific product poses a meaningful health risk. As a passive electronics product, NOCO Boost HD GB70 Jump Starter has no Safety Data Sheet, so there's no chemistry breakdown to translate beyond that.
Marketing copy from NOCO, via Amazon. Not editorial.
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